A certain brand of microwave oven was priced at stores in Dallas and stores in San Antonio. The data follow. Use level of significance and test whether prices for the microwave oven are the same in the two cities. Dallas San Antonio 439 461 467 462 476 450 488 437 472 482 429 460 440 454 405 440 407 476 428 486 483 437 439 What is the mean and standard deviation of the normal distribution that can be used for this statistical test

The graph of f(x)=|x| is reflected over the y-axis and horizontally compressed by a factor of 1/9. write a formula for function g(x)

Asays "we are both knaves" and b says nothing. exercises 24–31 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by smullyan [sm78]) who can either lie or tell the truth. you encounter three people, a, b, and c. you know one of these people is a knight, one is a knave, and one is a spy. each of the three people knows the type of person each of other two is. for each of these situations, if possible, determine whether there is a unique solution and determine who the knave, knight, and spy are. when there is no unique solution, list all possible solutions or state that there are no solutions. 24. a says "c is the knave," b says, "a is the knight," and c says "i am the spy."

Factor the polynomial. b^2 + 4b + 4